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1.
Am J Trop Med Hyg ; 83(1): 194-200, 2010 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-20595501

RESUMO

To assess the epidemiology of hepatitis B virus (HBV) infection among men who have sex with men (MSM) in Peru, we evaluated the prevalence and associated risk factors for HBV serologic markers among participants of a HIV sentinel surveillance conducted in 2002-2003. The standardized prevalences for total antibodies to hepatitis B core antigen (anti-HBc) and hepatitis B surface antigen (HBsAg) were 20.2% and 2.8%, respectively. Individuals with human immunodeficiency virus (HIV-1) infection had significantly higher anti-HBc (44.3% versus 19.3%) and HBsAg (9.5% versus 2.3%) prevalences than uninfected men. Increasing age (adjusted odds ratio [AOR] = 1.06), versatile sexual role (AOR = 1.59), sex in exchange for money/gifts (AOR = 1.58), syphilis (AOR = 1.74), HIV-1 infection (AOR = 1.64), and herpes simplex virus type 2 (HSV-2, AOR = 2.77) infection were independently associated with anti-HBc positivity, whereas only HIV-1 infection (AOR = 3.51) and generalized lymph node enlargement (AOR = 3.72) were associated with HBsAg positivity. Pre-existing HBV infection is very common among Peruvian MSM and was correlated with sexual risk factors. MSM in Peru constitute a target population for further HBV preventive and treatment interventions.


Assuntos
Hepatite B/complicações , Homossexualidade Masculina/psicologia , Infecções Sexualmente Transmissíveis/complicações , Hepatite B/transmissão , Homossexualidade Masculina/etnologia , Humanos , Masculino , Razão de Chances , Peru , Prevalência , Fatores de Risco , Comportamento Sexual/etnologia , Infecções Sexualmente Transmissíveis/virologia , Sexo sem Proteção
2.
J Sex Res ; 44(3): 233-9, 2007 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-17879166

RESUMO

Role versatility refers to the practice in which individual men who have sex with men (MSM) play both insertive and receptive sexual roles over time. Versatility has been thought to be relatively uncommon among Latin American MSM but possibly rising. Versatility has also been shown to be a potentially large population-level risk factor for HIV infection. In this study we examine the correlates of versatile behavior and identity among 2,655 MSM in six Peruvian cities. Versatile behavior with recent male partners was found in 9% of men and versatile ("moderno") identity was reported by 16%. Significant predictors included high education, white-collar occupation, sex work, and residence in Lima. Age was not significant in any analysis. Since sex work is negatively correlated with other predictors, versatile men appear to comprise two distinct sub-populations. Insertive-only men appear to play a strong role in bridging the HIV epidemic between MSM and women.


Assuntos
Bissexualidade/estatística & dados numéricos , Homossexualidade Masculina/estatística & dados numéricos , Autorrevelação , Parceiros Sexuais , Adulto , Atitude Frente a Saúde/etnologia , Bissexualidade/etnologia , Infecções por HIV/psicologia , Homossexualidade Masculina/etnologia , Humanos , Masculino , Grupo Associado , Peru/epidemiologia , Projetos de Pesquisa , Assunção de Riscos , Fatores Socioeconômicos , População Urbana/estatística & dados numéricos
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